PluginProbe
MxChat – AI Chatbot & Content Generation for WordPress / 1.0.8
MxChat – AI Chatbot & Content Generation for WordPress v1.0.8
3.2.21 3.2.20 3.2.19 3.2.18 3.2.17 3.2.16 3.2.15 3.2.14 3.2.12 3.2.13 3.2.11 3.2.10 3.2.9 3.2.8 3.2.7 3.2.6 3.2.5 3.2.4 3.2.3 3.2.2 3.2.1 2.0.3 2.0.4 2.0.5 2.0.6 All 152 releases
← All changes | mxchat-basic.php +78 -1746 3.2.15 → 1.0.8 View file →
@@ -1,16 +1,12 @@
1 1 <?php
2 2 /**
3 3 * Plugin Name: MxChat
4 - * Plugin URI: https://mxchat.ai/
5 - * Description: AI chatbot for WordPress with OpenAI, Claude, xAI, DeepSeek, live agent, PDF uploads, WooCommerce, and training on website data.
6 - * Version: 3.2.15
4 + * Description: AI Chatbot for WordPress. Features like custom knowledge submission, chat transcripts, and OpenAI integration for real-time user interaction. Perfect for blogs, business sites, e-commerce platforms, and more.
5 + * Version: 1.0.8
7 6 * Author: MxChat
8 - * Author URI: https://mxchat.ai
9 7 * License: GPLv2 or later
10 8 * License URI: https://www.gnu.org/licenses/gpl-2.0.html
11 - * Text Domain: mxchat
12 - * Domain Path: /languages
13 9 */
14 10
15 11 if (!defined('ABSPATH')) {
16 12 exit; // Exit if accessed directly.
@@ -15,1779 +11,115 @@
15 11 if (!defined('ABSPATH')) {
16 12 exit; // Exit if accessed directly.
17 13 }
18 14
15 +// Include classes
16 +require_once plugin_dir_path(__FILE__) . 'includes/class-mxchat-integrator.php';
17 +require_once plugin_dir_path(__FILE__) . 'includes/class-mxchat-admin.php';
18 +require_once plugin_dir_path(__FILE__) . 'includes/class-mxchat-public.php';
19 +require_once plugin_dir_path(__FILE__) . 'includes/class-mxchat-utils.php';
20 +require_once plugin_dir_path(__FILE__) . 'includes/class-mxchat-user.php';
21 +require_once plugin_dir_path(__FILE__) . 'includes/class-mxchat-woocommerce.php';
19 22
20 -if (!defined('MXCHAT_DEV_MODE')) {
21 - define('MXCHAT_DEV_MODE', false);
22 -}
23 +function mxchat_activate() {
24 + global $wpdb;
23 25
24 -if (!defined('MXCHAT_VERSION')) {
25 - $plugin_data = get_file_data(__FILE__, array('Version' => 'Version'), 'plugin');
26 - $version = $plugin_data['Version'];
27 - // MXCHAT_BASE_VERSION: the plain header version, stable across requests even in
28 - // dev mode. Use it for anything PERSISTED or COMPARED (the stored
29 - // mxchat_plugin_version option and the migration gate in
30 - // mxchat_check_for_update). MXCHAT_VERSION keeps the time() suffix in dev for
31 - // ASSET cache-busting only — persisting the suffixed value made the version
32 - // comparison churn every request, re-running the full activation/migration
33 - // suite per page load on dev installs.
34 - define('MXCHAT_BASE_VERSION', $version);
35 - if (MXCHAT_DEV_MODE) {
36 - $version .= '.' . time();
37 - }
38 - define('MXCHAT_VERSION', $version);
39 -}
40 -
41 -/**
42 - * Honest, versioned User-Agent for MXChat remote-content ingestion fetches
43 - * (Knowledge Base PDF import, URL import, sitemap / website crawl).
44 - *
45 - * WAF rulesets (SiteGround/ModSecurity, Wordfence, Cloudflare managed rules)
46 - * flag stale spoofed-browser UAs as scrapers and return 403 — which silently
47 - * broke the single most common KB source: self-hosted media on the site's own
48 - * domain. A truthful crawler identifier is the industry norm for well-behaved
49 - * bots and lets a site owner allowlist "MXChatBot" in their WAF. Filterable so
50 - * a locked-down host can supply a different string without a code change.
51 - */
52 -if (!function_exists('mxchat_ingest_user_agent')) {
53 - function mxchat_ingest_user_agent() {
54 - $version = defined('MXCHAT_VERSION') ? MXCHAT_VERSION : '1.0';
55 - $ua = 'MXChatBot/' . $version . ' (+https://mxchat.ai/bot)';
56 - return apply_filters('mxchat_ingest_user_agent', $ua);
57 - }
58 -}
59 -
60 -function mxchat_load_textdomain() {
61 - $domain = 'mxchat';
62 - $locale = determine_locale();
63 -
64 - // First, try to load from /wp-content/languages/plugins/ (preserved during updates)
65 - $mo_file = WP_LANG_DIR . '/plugins/' . $domain . '-' . $locale . '.mo';
66 - if (file_exists($mo_file)) {
67 - load_textdomain($domain, $mo_file);
68 - return;
69 - }
70 -
71 - // Fallback to plugin's /languages directory
72 - load_plugin_textdomain($domain, false, dirname(plugin_basename(__FILE__)) . '/languages');
73 -}
74 -add_action('init', 'mxchat_load_textdomain');
75 -
76 -/**
77 - * One-time migration: gemini-3-pro-preview was shut down by Google on March 9, 2026.
78 - * Existing installs with the dead ID get auto-remapped to gemini-3.1-pro-preview
79 - * (Google's official migration target) the first time admin_init fires after update.
80 - */
81 -add_action('admin_init', function () {
82 - if (get_option('mxchat_gemini_3_remap_done')) {
83 - return;
84 - }
85 - $opts = get_option('mxchat_options');
86 - if (is_array($opts) && isset($opts['model']) && $opts['model'] === 'gemini-3-pro-preview') {
87 - $opts['model'] = 'gemini-3.1-pro-preview';
88 - update_option('mxchat_options', $opts);
89 - }
90 - if (is_array($opts) && isset($opts['content_model']) && $opts['content_model'] === 'gemini-3-pro-preview') {
91 - $opts['content_model'] = 'gemini-3.1-pro-preview';
92 - update_option('mxchat_options', $opts);
93 - }
94 - update_option('mxchat_gemini_3_remap_done', 1);
95 -});
96 -
97 -/**
98 - * One-time migration: the Grok 2 family was retired by xAI (grok-2, grok-2-1212,
99 - * grok-2-latest, grok-2-vision-1212 all return 400 "Model not found"). Existing
100 - * installs with the dead ID get auto-remapped to grok-4-1-fast-non-reasoning
101 - * (modern, fast, broadly available) the first time admin_init fires after update.
102 - */
103 -add_action('admin_init', function () {
104 - if (get_option('mxchat_grok_2_remap_done')) {
105 - return;
106 - }
107 - $opts = get_option('mxchat_options');
108 - if (is_array($opts) && isset($opts['model']) && $opts['model'] === 'grok-2') {
109 - $opts['model'] = 'grok-4-1-fast-non-reasoning';
110 - update_option('mxchat_options', $opts);
111 - }
112 - if (is_array($opts) && isset($opts['content_model']) && $opts['content_model'] === 'grok-2') {
113 - $opts['content_model'] = 'grok-4-1-fast-non-reasoning';
114 - update_option('mxchat_options', $opts);
115 - }
116 - update_option('mxchat_grok_2_remap_done', 1);
117 -});
118 -
119 -/**
120 - * One-time migration: Anthropic retired the Claude 4 (2025-05-14) snapshots on
121 - * June 15, 2026 — claude-opus-4-20250514 and claude-sonnet-4-20250514 now return
122 - * an API error. Existing installs with a dead ID get auto-remapped to the current
123 - * equivalents Anthropic recommends (Opus 4.8 / Sonnet 4.6) the first time admin_init
124 - * fires after update. Mirrors the gemini-3-pro-preview / grok-2 rescues above.
125 - */
126 -add_action('admin_init', function () {
127 - if (get_option('mxchat_claude_4_retire_remap_done')) {
128 - return;
129 - }
130 - $map = array(
131 - 'claude-opus-4-20250514' => 'claude-opus-4-8',
132 - 'claude-sonnet-4-20250514' => 'claude-sonnet-4-6',
133 - );
134 - $opts = get_option('mxchat_options');
135 - if (is_array($opts)) {
136 - $changed = false;
137 - if (isset($opts['model']) && isset($map[$opts['model']])) {
138 - $opts['model'] = $map[$opts['model']];
139 - $changed = true;
140 - }
141 - if (isset($opts['content_model']) && isset($map[$opts['content_model']])) {
142 - $opts['content_model'] = $map[$opts['content_model']];
143 - $changed = true;
144 - }
145 - if ($changed) {
146 - update_option('mxchat_options', $opts);
147 - }
148 - }
149 - update_option('mxchat_claude_4_retire_remap_done', 1);
150 -});
151 -
152 -/**
153 - * Exclude MxChat assets from caching plugin optimizations
154 - *
155 - * This prevents issues with WP Rocket, LiteSpeed Cache, Autoptimize, WP Super Cache,
156 - * W3 Total Cache, SG Optimizer, and similar plugins that may break the chatbot by
157 - * removing "unused" CSS, minifying/combining JS, or deferring/delaying jQuery.
158 - *
159 - * Both chat-script.js and floating-script.js depend on jQuery, so jQuery must also
160 - * be excluded from any optimization that changes load order or timing.
161 - */
162 -
163 -// ── WP Rocket ────────────────────────────────────────────────────────────────
164 -
165 -// Exclude from Remove Unused CSS (RUCSS)
166 -add_filter('rocket_rucss_inline_atts_exclusions', function($exclusions) {
167 - if (!is_array($exclusions)) $exclusions = array();
168 - $exclusions[] = 'mxchat';
169 - return $exclusions;
170 -});
171 -
172 -// Exclude CSS from minification/combination
173 -add_filter('rocket_exclude_css', function($excluded) {
174 - if (!is_array($excluded)) $excluded = array();
175 - $excluded[] = '/plugins/mxchat-basic/css/chat-style.css';
176 - return $excluded;
177 -});
178 -
179 -// Exclude JS from minification/combination
180 -add_filter('rocket_exclude_js', function($excluded) {
181 - if (!is_array($excluded)) $excluded = array();
182 - $excluded[] = '/plugins/mxchat-basic/js/chat-script.js';
183 - $excluded[] = '/plugins/mxchat-basic/js/floating-script.js';
184 - $excluded[] = '/jquery-core';
185 - $excluded[] = '/jquery.min.js';
186 - $excluded[] = '/jquery.js';
187 - $excluded[] = '/jquery-migrate';
188 - return $excluded;
189 -});
190 -
191 -// Exclude JS from defer
192 -add_filter('rocket_exclude_defer_js', function($excluded) {
193 - if (!is_array($excluded)) $excluded = array();
194 - $excluded[] = '/plugins/mxchat-basic/js/chat-script.js';
195 - $excluded[] = '/plugins/mxchat-basic/js/floating-script.js';
196 - $excluded[] = '/jquery-core';
197 - $excluded[] = '/jquery.min.js';
198 - $excluded[] = '/jquery.js';
199 - $excluded[] = '/jquery-migrate';
200 - return $excluded;
201 -});
202 -
203 -// Exclude from delay JS execution
204 -add_filter('rocket_delay_js_exclusions', function($excluded) {
205 - if (!is_array($excluded)) $excluded = array();
206 - $excluded[] = 'mxchat';
207 - $excluded[] = 'chat-script';
208 - $excluded[] = 'floating-script';
209 - $excluded[] = '/jquery-core';
210 - $excluded[] = '/jquery.min.js';
211 - $excluded[] = '/jquery.js';
212 - $excluded[] = '/jquery-migrate';
213 - return $excluded;
214 -});
215 -
216 -// ── LiteSpeed Cache ──────────────────────────────────────────────────────────
217 -
218 -// Exclude CSS from optimization
219 -add_filter('litespeed_optimize_css_excludes', function($excluded) {
220 - if (!is_array($excluded)) $excluded = array();
221 - $excluded[] = 'chat-style.css';
222 - $excluded[] = 'mxchat';
223 - return $excluded;
224 -});
225 -
226 -// Exclude from UCSS (Unique CSS) - prevents LiteSpeed from stripping "unused" MxChat CSS
227 -add_filter('litespeed_ucss_whitelist', function($whitelist) {
228 - if (!is_array($whitelist)) $whitelist = array();
229 - $whitelist[] = '.mxchat-chatbot-wrapper';
230 - $whitelist[] = '.floating-chatbot';
231 - $whitelist[] = '.floating-chatbot-button';
232 - $whitelist[] = '.chatbot-top-bar';
233 - $whitelist[] = '.mxchat-chatbot';
234 - $whitelist[] = '.chat-container';
235 - $whitelist[] = '.chat-box';
236 - $whitelist[] = '.bot-message';
237 - $whitelist[] = '.input-container';
238 - $whitelist[] = '.chat-input';
239 - $whitelist[] = '.send-button';
240 - $whitelist[] = '.pre-chat-message';
241 - $whitelist[] = '.mxchat-popular-questions';
242 - $whitelist[] = '.chat-toolbar';
243 - $whitelist[] = '.exit-chat';
244 - $whitelist[] = '.email-blocker';
245 - return $whitelist;
246 -});
247 -
248 -// Exclude CSS from CCSS (Critical CSS) generation
249 -add_filter('litespeed_optm_ccss_exc', function($excluded) {
250 - if (!is_array($excluded)) $excluded = array();
251 - $excluded[] = 'chat-style.css';
252 - $excluded[] = 'mxchat';
253 - return $excluded;
254 -});
255 -
256 -// Exclude JS from defer
257 -add_filter('litespeed_optm_js_defer_exc', function($excluded) {
258 - if (!is_array($excluded)) $excluded = array();
259 - $excluded[] = 'chat-script.js';
260 - $excluded[] = 'floating-script.js';
261 - $excluded[] = 'mxchat';
262 - $excluded[] = 'jquery.min.js';
263 - $excluded[] = 'jquery.js';
264 - return $excluded;
265 -});
266 -
267 -// Exclude JS from combining
268 -add_filter('litespeed_optm_js_exc', function($excluded) {
269 - if (!is_array($excluded)) $excluded = array();
270 - $excluded[] = 'chat-script.js';
271 - $excluded[] = 'floating-script.js';
272 - $excluded[] = 'mxchat';
273 - $excluded[] = 'jquery.min.js';
274 - $excluded[] = 'jquery.js';
275 - return $excluded;
276 -});
277 -
278 -// Exclude JS from delayed execution
279 -add_filter('litespeed_optm_js_delay_exc', function($excluded) {
280 - if (!is_array($excluded)) $excluded = array();
281 - $excluded[] = 'chat-script.js';
282 - $excluded[] = 'floating-script.js';
283 - $excluded[] = 'mxchat';
284 - return $excluded;
285 -});
286 -
287 -// Exclude from Guest Mode optimization
288 -add_filter('litespeed_guest_optm_exc', function($excluded) {
289 - if (!is_array($excluded)) $excluded = array();
290 - $excluded[] = 'mxchat';
291 - $excluded[] = 'chat-style';
292 - $excluded[] = 'chat-script';
293 - $excluded[] = 'floating-script';
294 - return $excluded;
295 -});
296 -
297 -// ── Autoptimize ──────────────────────────────────────────────────────────────
298 -
299 -// Exclude CSS from optimization (comma-separated strings)
300 -add_filter('autoptimize_filter_css_exclude', function($excluded) {
301 - if (!is_string($excluded)) $excluded = '';
302 - return $excluded . ', mxchat, chat-style.css';
303 -});
304 -
305 -// Exclude JS from optimization (comma-separated strings)
306 -add_filter('autoptimize_filter_js_exclude', function($excluded) {
307 - if (!is_string($excluded)) $excluded = '';
308 - return $excluded . ', mxchat, chat-script.js, floating-script.js, jquery.min.js, jquery.js';
309 -});
310 -
311 -// ── SG Optimizer (SiteGround) ────────────────────────────────────────────────
312 -
313 -add_filter('sgo_js_minify_exclude', function($excluded) {
314 - if (!is_array($excluded)) $excluded = array();
315 - $excluded[] = 'chat-script.js';
316 - $excluded[] = 'floating-script.js';
317 - $excluded[] = 'jquery.min.js';
318 - return $excluded;
319 -});
320 -
321 -add_filter('sgo_javascript_combine_exclude', function($excluded) {
322 - if (!is_array($excluded)) $excluded = array();
323 - $excluded[] = 'chat-script.js';
324 - $excluded[] = 'floating-script.js';
325 - $excluded[] = 'jquery.min.js';
326 - return $excluded;
327 -});
328 -
329 -add_filter('sgo_js_async_exclude', function($excluded) {
330 - if (!is_array($excluded)) $excluded = array();
331 - $excluded[] = 'chat-script.js';
332 - $excluded[] = 'floating-script.js';
333 - $excluded[] = 'jquery.min.js';
334 - return $excluded;
335 -});
336 -
337 -// ── W3 Total Cache ───────────────────────────────────────────────────────────
338 -
339 -add_filter('w3tc_minify_js_do_tag_minification', function($do_minify, $script_tag, $file) {
340 - if (strpos($file, 'chat-script.js') !== false ||
341 - strpos($file, 'floating-script.js') !== false ||
342 - strpos($file, 'jquery.min.js') !== false ||
343 - strpos($file, 'jquery.js') !== false) {
344 - return false;
345 - }
346 - return $do_minify;
347 -}, 10, 3);
348 -
349 -// ── WP Super Cache ──────────────────────────────────────────────────────────
350 -
351 -add_filter('wpsc_rejected_uri', function($rejected) {
352 - if (!is_array($rejected)) $rejected = array();
353 - $rejected[] = 'wp-admin/admin-ajax.php';
354 - return $rejected;
355 -});
356 -
357 -// ── Page-cache bypass for chat AJAX (companion to the 3.2.6 nonce-race hotfix)
358 -// Each cache plugin gets its own filter export so that visitors hitting an
359 -// edge-cached page never receive cached chat-AJAX responses. The chat send /
360 -// stream send / file upload all POST to /wp-admin/admin-ajax.php with
361 -// `action=mxchat_*`. Without these exports, a cache plugin can stale a response
362 -// and break the per-session nonce flow on the first message.
363 -
364 -// WP Rocket — `rocket_cache_reject_uri` takes a flat array of regex strings.
365 -add_filter('rocket_cache_reject_uri', function($uris) {
366 - if (!is_array($uris)) $uris = array();
367 - $uris[] = '/wp-admin/admin-ajax\.php\?action=mxchat_.*';
368 - return $uris;
369 -});
370 -
371 -// LiteSpeed Cache — `litespeed_cache_no_cache_for_request` short-circuits
372 -// caching when the request matches our chat-AJAX pattern.
373 -add_filter('litespeed_cache_no_cache_for_request', function($no_cache) {
374 - if ($no_cache) return $no_cache;
375 - if (!empty($_SERVER['REQUEST_URI']) &&
376 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
377 - !empty($_REQUEST['action']) &&
378 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
379 - return true;
380 - }
381 - return $no_cache;
382 -});
383 -
384 -// W3 Total Cache — `w3tc_pgcache_request_skip_uri` flips page-cache off when
385 -// the URI matches.
386 -add_filter('w3tc_pgcache_request_skip_uri', function($skip) {
387 - if ($skip) return $skip;
388 - if (!empty($_SERVER['REQUEST_URI']) &&
389 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
390 - !empty($_REQUEST['action']) &&
391 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
392 - return true;
393 - }
394 - return $skip;
395 -});
396 -
397 -// FlyingPress — `flying_press_cacheable` takes a boolean and is run per
398 -// request. Same pattern as LiteSpeed / W3TC.
399 -add_filter('flying_press_cacheable', function($cacheable) {
400 - if (!$cacheable) return $cacheable;
401 - if (!empty($_SERVER['REQUEST_URI']) &&
402 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
403 - !empty($_REQUEST['action']) &&
404 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
405 - return false;
406 - }
407 - return $cacheable;
408 -});
409 -
410 -// Include classes with error handling
411 -function mxchat_include_classes() {
412 - $class_files = array(
413 - 'includes/class-mxchat-model-catalog.php',
414 - 'includes/class-mxchat-live-agent-schedule.php',
415 - 'includes/class-mxchat-tool-registry.php',
416 - 'includes/class-mxchat-integrator.php',
417 - 'includes/class-mxchat-admin.php',
418 - 'includes/class-mxchat-public.php',
419 - 'includes/class-mxchat-utils.php',
420 - 'includes/class-mxchat-user.php',
421 - 'includes/class-mxchat-meta-box.php',
422 - 'includes/class-mxchat-chunker.php',
423 - 'includes/class-mxchat-word-handler.php',
424 - 'includes/class-mxchat-content-generator.php',
425 - 'includes/class-mxchat-cache-purge.php',
426 - 'includes/class-mxchat-editor-assistant.php',
427 - 'includes/class-rest-api.php',
428 - 'admin/class-ajax-handler.php',
429 - 'admin/class-pinecone-manager.php',
430 - 'admin/class-knowledge-manager.php'
431 - );
432 -
433 - foreach ($class_files as $file) {
434 - $file_path = plugin_dir_path(__FILE__) . $file;
435 - if (file_exists($file_path)) {
436 - require_once $file_path;
437 - } else {
438 - //error_log('MxChat: Missing class file - ' . $file);
439 - }
440 - }
441 -
442 - // Register the native function-calling admin-post save handler (a41dee).
443 - if (class_exists('MxChat_Tool_Registry')) {
444 - MxChat_Tool_Registry::init();
445 - }
446 -
447 - // Editor Assistant — free, OFF-by-default block-editor AI actions (plan-8cb0cb).
448 - // init() wires REST + streaming AJAX + sidebar enqueue ONLY when the
449 - // mxchat_editor_assistant_enabled option is 'on'; otherwise zero footprint.
450 - if (class_exists('MxChat_Editor_Assistant')) {
451 - MxChat_Editor_Assistant::init();
452 - }
453 -
454 - // Admin pages that aren't classes (procedural include).
455 - if (is_admin()) {
456 - $admin_api_page = plugin_dir_path(__FILE__) . 'includes/admin-api-page.php';
457 - if (file_exists($admin_api_page)) {
458 - require_once $admin_api_page;
459 - }
460 - // f7c7d4 renamed this file admin-dashboard-page.php → admin-onboarding-page.php.
461 - // The require MUST live here (admin bootstrap) and not just inside
462 - // mxchat_add_plugin_page() on the admin_menu hook — admin_menu does NOT
463 - // fire on admin-ajax.php requests, so the wizard's AJAX handlers
464 - // (plan-905439: mxchat_onboarding_kb_status / save_step / mark_step /
465 - // auto_graduate + the f7c7d4 dismiss handler) would never register.
466 - $admin_onboarding_page = plugin_dir_path(__FILE__) . 'includes/admin-onboarding-page.php';
467 - if (file_exists($admin_onboarding_page)) {
468 - require_once $admin_onboarding_page;
469 - }
470 - }
471 -}
472 -
473 -/**
474 - * Lazy-load the PDF parser library only when needed.
475 - * Avoids loading 44 files on every page request.
476 - */
477 -function mxchat_load_pdf_parser() {
478 - if (class_exists('\Smalot\PdfParser\Parser')) {
479 - return true;
480 - }
481 - $autoload_path = plugin_dir_path(__FILE__) . 'includes/pdf-parser/alt_autoload.php';
482 - if (file_exists($autoload_path)) {
483 - require_once $autoload_path;
484 - return true;
485 - }
486 - return false;
487 -}
488 -
489 -/**
490 - * Create URL click tracking table
491 - */
492 -function mxchat_create_url_clicks_table() {
493 - global $wpdb;
494 -
495 - $table_name = $wpdb->prefix . 'mxchat_url_clicks';
496 -
497 - $charset_collate = $wpdb->get_charset_collate();
498 -
499 - $sql = "CREATE TABLE $table_name (
26 + // Chat Transcripts Table
27 + $chat_transcripts_table = $wpdb->prefix . 'mxchat_chat_transcripts';
28 + $sql_chat_transcripts = "CREATE TABLE $chat_transcripts_table (
500 29 id mediumint(9) NOT NULL AUTO_INCREMENT,
501 - session_id varchar(100) NOT NULL,
502 - clicked_url text NOT NULL,
503 - message_context text,
504 - click_timestamp datetime DEFAULT CURRENT_TIMESTAMP,
505 - user_ip varchar(45),
506 - user_agent text,
507 - PRIMARY KEY (id),
508 - KEY session_id (session_id),
509 - KEY click_timestamp (click_timestamp)
510 - ) $charset_collate;";
511 -
512 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
513 - dbDelta($sql);
514 -}
30 + user_id mediumint(9) DEFAULT 0,
31 + session_id varchar(255) NOT NULL,
32 + role varchar(255) NOT NULL,
33 + message text NOT NULL,
34 + timestamp timestamp DEFAULT CURRENT_TIMESTAMP NOT NULL,
35 + PRIMARY KEY (id)
36 + );";
515 37
516 -/**
517 - * FIXED: Robust table creation and column management
518 - */
519 -function mxchat_create_chat_transcripts_table() {
520 - global $wpdb;
521 -
522 - $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
523 - $charset_collate = $wpdb->get_charset_collate();
524 -
525 - // Create table with ALL columns including user_name from the start
526 - $sql = "CREATE TABLE $table_name (
527 - id MEDIUMINT(9) NOT NULL AUTO_INCREMENT,
528 - user_id MEDIUMINT(9) DEFAULT 0,
529 - session_id VARCHAR(255) NOT NULL,
530 - role VARCHAR(255) NOT NULL,
531 - message TEXT NOT NULL,
532 - user_email VARCHAR(255) DEFAULT NULL,
533 - user_name VARCHAR(100) DEFAULT NULL,
534 - user_identifier VARCHAR(255) DEFAULT NULL,
535 - originating_page_url TEXT DEFAULT NULL,
536 - originating_page_title VARCHAR(500) DEFAULT NULL,
537 - timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
538 - PRIMARY KEY (id),
539 - KEY session_id (session_id),
540 - KEY user_email (user_email),
541 - KEY timestamp (timestamp)
542 - ) $charset_collate;";
543 -
544 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
545 - $result = dbDelta($sql);
546 -
547 - // Log the result for debugging
548 - if (empty($result)) {
549 - //error_log("MxChat: dbDelta returned empty result for chat transcripts table");
550 - } else {
551 - //error_log("MxChat: dbDelta result: " . print_r($result, true));
552 - }
553 -
554 - // IMPORTANT: Ensure all columns exist for existing installations
555 - mxchat_ensure_all_columns($table_name);
556 -}
557 -
558 -/**
559 - * Ensure all required columns exist (for upgrades)
560 - */
561 -function mxchat_ensure_all_columns($table_name) {
562 - global $wpdb;
563 -
564 - // First check if table exists
565 - $table_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name;
566 - if (!$table_exists) {
567 - //error_log("MxChat: Table $table_name does not exist, cannot add columns");
568 - return;
569 - }
570 -
571 - // Define all required columns and their types
572 - $required_columns = [
573 - 'user_identifier' => 'VARCHAR(255) DEFAULT NULL',
574 - 'user_email' => 'VARCHAR(255) DEFAULT NULL',
575 - 'user_name' => 'VARCHAR(100) DEFAULT NULL',
576 - 'originating_page_url' => 'TEXT DEFAULT NULL',
577 - 'originating_page_title' => 'VARCHAR(500) DEFAULT NULL',
578 - 'rag_context' => 'LONGTEXT DEFAULT NULL'
579 - ];
580 -
581 - // Get existing columns
582 - $existing_columns = $wpdb->get_results("SHOW COLUMNS FROM $table_name");
583 - if (empty($existing_columns)) {
584 - //error_log("MxChat: Could not get columns for table $table_name");
585 - return;
586 - }
587 -
588 - $existing_column_names = array_column($existing_columns, 'Field');
589 -
590 - // Add missing columns
591 - foreach ($required_columns as $column_name => $column_definition) {
592 - if (!in_array($column_name, $existing_column_names)) {
593 - $alter_sql = "ALTER TABLE $table_name ADD COLUMN $column_name $column_definition";
594 - $result = $wpdb->query($alter_sql);
595 -
596 - if ($result === false) {
597 - //error_log("MxChat: Failed to add column $column_name to $table_name. Error: " . $wpdb->last_error);
598 - } else {
599 - //error_log("MxChat: Successfully added column $column_name to $table_name");
600 - }
601 - }
602 - }
603 -}
604 -
605 -/**
606 - * Add role restriction column to knowledge base table
607 - */
608 -function mxchat_add_role_restriction_column() {
609 - global $wpdb;
610 - $table_name = $wpdb->prefix . 'mxchat_system_prompt_content';
611 -
612 - // Check if table exists first
613 - $table_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name;
614 - if (!$table_exists) {
615 - //error_log("MxChat: System prompt content table does not exist, cannot add role_restriction column");
616 - return;
617 - }
618 -
619 - // Check if column already exists
620 - $column_exists = $wpdb->get_results(
621 - $wpdb->prepare(
622 - "SHOW COLUMNS FROM {$table_name} LIKE %s",
623 - 'role_restriction'
624 - )
625 - );
626 -
627 - if (empty($column_exists)) {
628 - $alter_sql = "ALTER TABLE {$table_name} ADD COLUMN role_restriction VARCHAR(50) DEFAULT 'public' AFTER source_url";
629 - $result = $wpdb->query($alter_sql);
630 -
631 - if ($result === false) {
632 - //error_log("MxChat: Failed to add role_restriction column. Error: " . $wpdb->last_error);
633 - } else {
634 - //error_log("MxChat: Successfully added role_restriction column");
635 -
636 - // Set all existing records to 'public' (everyone can access)
637 - $update_result = $wpdb->query(
638 - "UPDATE {$table_name}
639 - SET role_restriction = 'public'
640 - WHERE role_restriction IS NULL OR role_restriction = ''"
641 - );
642 -
643 - if ($update_result !== false) {
644 - //error_log("MxChat: Updated {$update_result} existing records to public access");
645 - }
646 - }
647 - }
648 -}
649 -
650 -/**
651 - * Add enabled_bots column to intents table for multi-bot action filtering
652 - */
653 -function mxchat_add_enabled_bots_column() {
654 - global $wpdb;
655 - $table_name = $wpdb->prefix . 'mxchat_intents';
656 -
657 - // Check if table exists first
658 - $table_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name;
659 - if (!$table_exists) {
660 - //error_log("MxChat: Intents table does not exist, cannot add enabled_bots column");
661 - return;
662 - }
663 -
664 - // Check if column already exists
665 - $column_exists = $wpdb->get_results(
666 - $wpdb->prepare(
667 - "SHOW COLUMNS FROM {$table_name} LIKE %s",
668 - 'enabled_bots'
669 - )
670 - );
671 -
672 - if (empty($column_exists)) {
673 - $alter_sql = "ALTER TABLE {$table_name} ADD COLUMN enabled_bots LONGTEXT DEFAULT NULL AFTER enabled";
674 - $result = $wpdb->query($alter_sql);
675 -
676 - if ($result === false) {
677 - //error_log("MxChat: Failed to add enabled_bots column. Error: " . $wpdb->last_error);
678 - } else {
679 - //error_log("MxChat: Successfully added enabled_bots column");
680 -
681 - // Set all existing actions to work with 'default' bot for backward compatibility
682 - $default_bots = json_encode(['default']);
683 - $update_result = $wpdb->query(
684 - $wpdb->prepare(
685 - "UPDATE {$table_name}
686 - SET enabled_bots = %s
687 - WHERE enabled_bots IS NULL OR enabled_bots = ''",
688 - $default_bots
689 - )
690 - );
691 -
692 - if ($update_result !== false) {
693 - //error_log("MxChat: Updated {$update_result} existing actions to work with default bot");
694 - }
695 - }
696 - }
697 -}
698 -
699 -/**
700 - * Create Pinecone role restrictions table with multi-bot support
701 - */
702 -function mxchat_create_pinecone_roles_table() {
703 - global $wpdb;
704 -
705 - $table_name = $wpdb->prefix . 'mxchat_pinecone_roles';
706 - $charset_collate = $wpdb->get_charset_collate();
707 -
708 - $sql = "CREATE TABLE $table_name (
38 + // System Prompt Content Table
39 + $system_prompt_table = $wpdb->prefix . 'mxchat_system_prompt_content';
40 + $sql_system_prompt = "CREATE TABLE $system_prompt_table (
709 41 id mediumint(9) NOT NULL AUTO_INCREMENT,
710 - vector_id varchar(255) NOT NULL,
711 - bot_id varchar(50) NOT NULL DEFAULT 'default',
712 - source_url text,
713 - role_restriction varchar(50) DEFAULT 'public',
714 - updated_at timestamp DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
715 - PRIMARY KEY (id),
716 - UNIQUE KEY vector_bot (vector_id, bot_id),
717 - KEY role_restriction (role_restriction),
718 - KEY bot_id (bot_id)
719 - ) $charset_collate;";
42 + url varchar(255) NOT NULL,
43 + article_content longtext NOT NULL,
44 + embedding_vector longtext,
45 + timestamp timestamp DEFAULT CURRENT_TIMESTAMP NOT NULL,
46 + PRIMARY KEY (id)
47 + );";
720 48
721 49 require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
722 - dbDelta($sql);
723 -}
724 50
725 -/**
726 - * Add bot_id column to mxchat_pinecone_roles table for multi-bot support
727 - * This migration runs once to update existing installations
728 - */
729 -function mxchat_migrate_pinecone_roles_add_bot_id() {
730 - global $wpdb;
51 + // Create or update the chat transcripts table
52 + dbDelta($sql_chat_transcripts);
731 53
732 - // Check if migration already ran
733 - $migration_version = get_option('mxchat_pinecone_roles_migration_version', '0');
734 - if (version_compare($migration_version, '2.5.2', '>=')) {
735 - return; // Already migrated
736 - }
54 + // Create or update the system prompt content table
55 + dbDelta($sql_system_prompt);
737 56
738 - $table_name = $wpdb->prefix . 'mxchat_pinecone_roles';
739 -
740 - // Check if table exists
741 - if ($wpdb->get_var("SHOW TABLES LIKE '{$table_name}'") != $table_name) {
742 - return; // Table doesn't exist yet
743 - }
744 -
745 - // Check if bot_id column already exists
746 - $column_exists = $wpdb->get_results("SHOW COLUMNS FROM {$table_name} LIKE 'bot_id'");
747 -
57 + // Ensure 'embedding_vector' column exists in the 'system_prompt_content' table
58 + $column_exists = $wpdb->get_results($wpdb->prepare(
59 + "SHOW COLUMNS FROM {$system_prompt_table} LIKE %s",
60 + 'embedding_vector'
61 + ));
748 62 if (empty($column_exists)) {
749 - // Add bot_id column
750 - $wpdb->query("ALTER TABLE {$table_name} ADD COLUMN bot_id VARCHAR(50) NOT NULL DEFAULT 'default' AFTER vector_id");
751 -
752 - // Update the unique key to include bot_id
753 - $wpdb->query("ALTER TABLE {$table_name} DROP INDEX vector_id");
754 - $wpdb->query("ALTER TABLE {$table_name} ADD UNIQUE KEY vector_bot (vector_id, bot_id)");
755 -
756 - // Add index for bot_id
757 - $wpdb->query("ALTER TABLE {$table_name} ADD KEY bot_id (bot_id)");
758 -
759 - //error_log('MxChat: Successfully added bot_id column to mxchat_pinecone_roles table');
760 - }
761 -
762 - // Mark migration as complete
763 - update_option('mxchat_pinecone_roles_migration_version', '2.5.2');
764 -}
765 -
766 -/**
767 - * 2.5.6: Add content_type column to mxchat_system_prompt_content table
768 - * Enables filtering knowledge base by content type (posts, pages, PDFs, etc.)
769 - */
770 -function mxchat_migrate_add_content_type_column() {
771 - global $wpdb;
772 -
773 - // Check if migration already ran
774 - $migration_version = get_option('mxchat_content_type_migration_version', '0');
775 - if (version_compare($migration_version, '2.5.6', '>=')) {
776 - return;
777 - }
778 -
779 - $table_name = $wpdb->prefix . 'mxchat_system_prompt_content';
780 -
781 - // Check if table exists
782 - if ($wpdb->get_var("SHOW TABLES LIKE '{$table_name}'") != $table_name) {
783 - return;
784 - }
785 -
786 - // Check if content_type column already exists
787 - $column_exists = $wpdb->get_results("SHOW COLUMNS FROM {$table_name} LIKE 'content_type'");
788 -
789 - if (empty($column_exists)) {
790 - // Add content_type column with default value 'content' for backwards compatibility
791 - $wpdb->query("ALTER TABLE {$table_name} ADD COLUMN content_type VARCHAR(50) DEFAULT 'content' AFTER role_restriction");
792 -
793 - // Add index for better query performance
794 - $wpdb->query("ALTER TABLE {$table_name} ADD KEY content_type (content_type)");
795 -
796 - //error_log('MxChat: Successfully added content_type column to mxchat_system_prompt_content table');
797 - }
798 -
799 - // Mark migration as complete
800 - update_option('mxchat_content_type_migration_version', '2.5.6');
801 -}
802 -
803 -/**
804 - * 3.2.4: Backfill the active embedding model option for installs that already
805 - * have KB content but no stamped model. The mismatch warning compares this
806 - * against the user's currently selected model — no per-row column needed.
807 - */
808 -function mxchat_backfill_active_embedding_model() {
809 - global $wpdb;
810 -
811 - if (get_option('mxchat_active_embedding_model', '') !== '') {
812 - return;
813 - }
814 -
815 - $kb_table = $wpdb->prefix . 'mxchat_system_prompt_content';
816 - if ($wpdb->get_var("SHOW TABLES LIKE '{$kb_table}'") !== $kb_table) {
817 - return;
818 - }
819 -
820 - $kb_count = (int) $wpdb->get_var("SELECT COUNT(*) FROM {$kb_table}");
821 - if ($kb_count > 0) {
822 - $options = get_option('mxchat_options', array());
823 - $current_model = $options['embedding_model'] ?? 'text-embedding-ada-002';
824 - update_option('mxchat_active_embedding_model', $current_model, false);
825 - }
826 -}
827 -
828 -/**
829 - * 2.5.2: Create queue processing tables for reliable background processing
830 - */
831 -function mxchat_create_queue_tables() {
832 - global $wpdb;
833 - $charset_collate = $wpdb->get_charset_collate();
834 -
835 - // Main queue table
836 - $queue_table = $wpdb->prefix . 'mxchat_processing_queue';
837 - $sql_queue = "CREATE TABLE $queue_table (
838 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
839 - queue_id varchar(64) NOT NULL,
840 - item_type varchar(20) NOT NULL,
841 - item_data longtext NOT NULL,
842 - status varchar(20) NOT NULL DEFAULT 'pending',
843 - bot_id varchar(50) NOT NULL DEFAULT 'default',
844 - priority int(11) NOT NULL DEFAULT 0,
845 - attempts int(11) NOT NULL DEFAULT 0,
846 - max_attempts int(11) NOT NULL DEFAULT 3,
847 - error_message text DEFAULT NULL,
848 - created_at datetime NOT NULL,
849 - started_at datetime DEFAULT NULL,
850 - completed_at datetime DEFAULT NULL,
851 - PRIMARY KEY (id),
852 - KEY queue_id (queue_id),
853 - KEY status (status),
854 - KEY item_type (item_type),
855 - KEY priority (priority)
856 - ) $charset_collate;";
857 -
858 - // Queue metadata table
859 - $meta_table = $wpdb->prefix . 'mxchat_queue_meta';
860 - $sql_meta = "CREATE TABLE $meta_table (
861 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
862 - queue_id varchar(64) NOT NULL,
863 - meta_key varchar(255) NOT NULL,
864 - meta_value longtext,
865 - PRIMARY KEY (id),
866 - KEY queue_id (queue_id),
867 - KEY meta_key (meta_key)
868 - ) $charset_collate;";
869 -
870 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
871 - dbDelta($sql_queue);
872 - dbDelta($sql_meta);
873 -
874 - //error_log("MxChat: Queue tables created/updated successfully");
875 -}
876 -
877 -/**
878 - * Create transcript translations table for persisting translations
879 - */
880 -function mxchat_create_translations_table() {
881 - global $wpdb;
882 - $charset_collate = $wpdb->get_charset_collate();
883 -
884 - $table_name = $wpdb->prefix . 'mxchat_transcript_translations';
885 - $sql = "CREATE TABLE $table_name (
886 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
887 - session_id varchar(255) NOT NULL,
888 - language_code varchar(10) NOT NULL,
889 - translations longtext NOT NULL,
890 - created_at datetime NOT NULL,
891 - updated_at datetime NOT NULL,
892 - PRIMARY KEY (id),
893 - UNIQUE KEY session_lang (session_id, language_code),
894 - KEY session_id (session_id)
895 - ) $charset_collate;";
896 -
897 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
898 - dbDelta($sql);
899 -}
900 -
901 -/**
902 - * Create per-session satisfaction ratings table (v3.2.6)
903 - * Stores one 👍/👎 rating + optional feedback per chat session.
904 - */
905 -function mxchat_create_session_ratings_table() {
906 - global $wpdb;
907 - $charset_collate = $wpdb->get_charset_collate();
908 -
909 - $table_name = $wpdb->prefix . 'mxchat_session_ratings';
910 - $sql = "CREATE TABLE $table_name (
911 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
912 - session_id varchar(255) NOT NULL,
913 - bot_id varchar(50) NOT NULL DEFAULT 'default',
914 - rating_value tinyint(1) NOT NULL,
915 - rating_feedback text DEFAULT NULL,
916 - created_at datetime NOT NULL,
917 - PRIMARY KEY (id),
918 - UNIQUE KEY session_id (session_id),
919 - KEY bot_id (bot_id),
920 - KEY created_at (created_at)
921 - ) $charset_collate;";
922 -
923 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
924 - dbDelta($sql);
925 -}
926 -
927 -/**
928 - * 2.5.2: Fix URL column size to support long URLs (especially with UTF-8 encoding)
929 - * This fixes "url, source_url. The supplied values may be too long" errors
930 - */
931 -function mxchat_fix_url_column_size() {
932 - global $wpdb;
933 - $table_name = $wpdb->prefix . 'mxchat_system_prompt_content';
934 -
935 - // Check if table exists
936 - $table_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name;
937 - if (!$table_exists) {
938 - return;
939 - }
940 -
941 - // Change url and source_url from VARCHAR to TEXT to handle long URLs
942 - // This is especially important for URLs with UTF-8 encoded characters (Hebrew, Arabic, etc.)
943 - $wpdb->query("ALTER TABLE {$table_name} MODIFY COLUMN url TEXT");
944 - $wpdb->query("ALTER TABLE {$table_name} MODIFY COLUMN source_url TEXT");
945 -
946 - //error_log("MxChat: Successfully updated url and source_url columns to TEXT type for long URL support");
947 -}
948 -
949 -/**
950 - * Migrate deprecated AI models to their replacements
951 - * Version 2.5.1: Migrate Claude 3.5 Sonnet (deprecated) to Claude 3.7 Sonnet
952 - * Version 3.1.2: Convert chat transcripts table to utf8mb4 for emoji support
953 - * Without utf8mb4, any bot response containing emojis silently fails to insert.
954 - */
955 -function mxchat_migrate_transcripts_charset() {
956 - global $wpdb;
957 - $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
958 - $wpdb->query("ALTER TABLE $table_name CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci");
959 -}
960 -
961 -/**
962 - * Version 3.0.55: Migrate GPT-4 series models (deprecated 2026-02-17) to GPT-5 series
963 - */
964 -function mxchat_migrate_deprecated_models() {
965 - $options = get_option('mxchat_options', array());
966 - $migrated = false;
967 - $migration_message = '';
968 -
969 - if (!isset($options['model'])) {
970 - return;
971 - }
972 -
973 - $current_model = $options['model'];
974 -
975 - // Migrate deprecated Claude models to Claude Opus 4.6 (recommended replacement per Anthropic)
976 - $deprecated_claude_models = array(
977 - 'claude-3-5-sonnet-20240620', // Retired Oct 28, 2025
978 - 'claude-3-5-sonnet-20241022', // Retired Oct 28, 2025
979 - 'claude-3-7-sonnet-20250219', // Retiring Feb 19, 2026
980 - 'claude-3-opus-20240229', // Retired Jan 5, 2026
981 - 'claude-3-sonnet-20240229', // Legacy
982 - 'claude-3-haiku-20240307', // Legacy
983 - );
984 - if (in_array($current_model, $deprecated_claude_models, true)) {
985 - $options['model'] = 'claude-opus-4-6';
986 - $migrated = true;
987 - $migration_message = sprintf(
988 - 'Your chatbot model has been automatically updated from %s to Claude Opus 4.6 due to Anthropic deprecating older Claude models.',
989 - $current_model
63 + $wpdb->query(
64 + "ALTER TABLE {$system_prompt_table} ADD COLUMN embedding_vector longtext"
990 65 );
991 66 }
992 67
993 - // Migrate deprecated Claude Haiku 3.5 to Claude Haiku 4.5
994 - if ($current_model === 'claude-3-5-haiku-20241022') {
995 - $options['model'] = 'claude-haiku-4-5-20251001';
996 - $migrated = true;
997 - $migration_message = 'Your chatbot model has been automatically updated from Claude Haiku 3.5 to Claude Haiku 4.5 due to Anthropic deprecating the older model.';
998 - }
999 -
1000 - // Migrate deprecated GPT-4 series and GPT-3.5 Turbo to GPT-5.1 Chat Latest
1001 - if (in_array($current_model, array('gpt-4o', 'gpt-4.1-2025-04-14', 'gpt-4-turbo', 'gpt-4', 'gpt-3.5-turbo'), true)) {
1002 - $options['model'] = 'gpt-5.1-chat-latest';
1003 - $migrated = true;
1004 - $migration_message = sprintf(
1005 - 'Your chatbot model has been automatically updated from %s to GPT-5.1 Chat Latest due to OpenAI deprecating older models.',
1006 - $current_model
68 + // Ensure 'source_url' column exists in the 'system_prompt_content' table
69 + $source_url_exists = $wpdb->get_results($wpdb->prepare(
70 + "SHOW COLUMNS FROM {$system_prompt_table} LIKE %s",
71 + 'source_url'
72 + ));
73 + if (empty($source_url_exists)) {
74 + $wpdb->query(
75 + "ALTER TABLE {$system_prompt_table} ADD COLUMN source_url VARCHAR(255) DEFAULT NULL"
1007 76 );
1008 77 }
1009 78
1010 - // Migrate deprecated GPT-4o Mini and GPT-4.1 Mini to GPT-5 Mini
1011 - if (in_array($current_model, array('gpt-4o-mini', 'gpt-4.1-mini'), true)) {
1012 - $options['model'] = 'gpt-5-mini';
1013 - $migrated = true;
1014 - $migration_message = sprintf(
1015 - 'Your chatbot model has been automatically updated from %s to GPT-5 Mini due to OpenAI deprecating GPT-4 series models.',
1016 - $current_model
79 + // Ensure 'user_identifier' and 'user_email' columns exist in the 'chat_transcripts' table
80 + $user_identifier_exists = $wpdb->get_results($wpdb->prepare(
81 + "SHOW COLUMNS FROM {$chat_transcripts_table} LIKE %s",
82 + 'user_identifier'
83 + ));
84 + if (empty($user_identifier_exists)) {
85 + $wpdb->query(
86 + "ALTER TABLE {$chat_transcripts_table} ADD COLUMN user_identifier VARCHAR(255)"
1017 87 );
1018 88 }
1019 89
1020 - // Migrate retired DeepSeek ids to DeepSeek V4 Flash — the vendor removed
1021 - // deepseek-chat and deepseek-reasoner on 2026-07-24 (hard cutoff, every
1022 - // request 400s). V4 Flash is DeepSeek's designated successor for the
1023 - // legacy deepseek-chat alias.
1024 - if (in_array($current_model, array('deepseek-chat', 'deepseek-reasoner'), true)) {
1025 - $options['model'] = 'deepseek-v4-flash';
1026 - $migrated = true;
1027 - $migration_message = sprintf(
1028 - 'Your chatbot model has been automatically updated from %s to DeepSeek V4 Flash because DeepSeek retired its older API models on July 24, 2026.',
1029 - $current_model
90 + $user_email_exists = $wpdb->get_results($wpdb->prepare(
91 + "SHOW COLUMNS FROM {$chat_transcripts_table} LIKE %s",
92 + 'user_email'
93 + ));
94 + if (empty($user_email_exists)) {
95 + $wpdb->query(
96 + "ALTER TABLE {$chat_transcripts_table} ADD COLUMN user_email VARCHAR(255)"
1030 97 );
1031 98 }
1032 99
1033 - if ($migrated) {
1034 - update_option('mxchat_options', $options);
1035 - update_option('mxchat_model_migrated_notice', true);
1036 - update_option('mxchat_model_migration_message', $migration_message);
1037 - }
100 + // Update the version number in the database
101 + update_option('mxchat_plugin_version', '1.0.8');
1038 102 }
1039 103
1040 -/**
1041 - * Show admin notice after model migration
1042 - */
1043 -function mxchat_show_migration_notice() {
1044 - if (get_option('mxchat_model_migrated_notice')) {
1045 - $migration_message = get_option('mxchat_model_migration_message', __('Your chatbot model has been automatically updated due to a model deprecation.', 'mxchat'));
1046 - ?>
1047 - <div class="notice notice-info is-dismissible">
1048 - <p>
1049 - <strong><?php esc_html_e('MxChat Model Updated', 'mxchat'); ?></strong><br>
1050 - <?php echo esc_html($migration_message); ?>
1051 - </p>
1052 - </div>
1053 - <?php
1054 - delete_option('mxchat_model_migrated_notice');
1055 - delete_option('mxchat_model_migration_message');
1056 - }
1057 -}
1058 -
1059 -function mxchat_activate() {
1060 - global $wpdb;
1061 - $charset_collate = $wpdb->get_charset_collate();
1062 -
1063 - //error_log("MxChat: Running activation function");
1064 -
1065 - // Create chat transcripts table with improved function
1066 - mxchat_create_chat_transcripts_table();
1067 -
1068 - // System Prompt Content Table - UPDATED: Use TEXT for url and source_url columns
1069 - $system_prompt_table = $wpdb->prefix . 'mxchat_system_prompt_content';
1070 - $sql_system_prompt = "CREATE TABLE $system_prompt_table (
1071 - id MEDIUMINT(9) NOT NULL AUTO_INCREMENT,
1072 - url TEXT NOT NULL,
1073 - article_content LONGTEXT NOT NULL,
1074 - embedding_vector LONGTEXT,
1075 - source_url TEXT DEFAULT NULL,
1076 - role_restriction VARCHAR(50) DEFAULT 'public',
1077 - content_type VARCHAR(50) DEFAULT 'content',
1078 - timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
1079 - PRIMARY KEY (id),
1080 - KEY content_type (content_type)
1081 - ) $charset_collate;";
1082 -
1083 - // Intents Table - NOW INCLUDES enabled_bots column from the start
1084 - $intents_table = $wpdb->prefix . 'mxchat_intents';
1085 - $sql_intents_table = "CREATE TABLE $intents_table (
1086 - id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT,
1087 - intent_label VARCHAR(255) NOT NULL,
1088 - phrases TEXT NOT NULL,
1089 - embedding_vector LONGTEXT NOT NULL,
1090 - callback_function VARCHAR(255) NOT NULL,
1091 - similarity_threshold FLOAT DEFAULT 0.85,
1092 - enabled TINYINT(1) NOT NULL DEFAULT 1,
1093 - enabled_bots LONGTEXT DEFAULT NULL,
1094 - PRIMARY KEY (id)
1095 - ) $charset_collate;";
1096 -
1097 - // Individual Intent Phrases Table - each phrase gets its own embedding vector
1098 - $intent_phrases_table = $wpdb->prefix . 'mxchat_intent_phrases';
1099 - $sql_intent_phrases_table = "CREATE TABLE $intent_phrases_table (
1100 - id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT,
1101 - intent_id BIGINT(20) UNSIGNED NOT NULL,
1102 - phrase TEXT NOT NULL,
1103 - embedding_vector LONGTEXT NOT NULL,
1104 - created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
1105 - PRIMARY KEY (id),
1106 - KEY intent_id (intent_id)
1107 - ) $charset_collate;";
1108 -
1109 - require_once ABSPATH . 'wp-admin/includes/upgrade.php';
1110 -
1111 - // Create other tables
1112 - dbDelta($sql_system_prompt);
1113 - dbDelta($sql_intents_table);
1114 - dbDelta($sql_intent_phrases_table);
1115 -
1116 - // Create URL click tracking table
1117 - mxchat_create_url_clicks_table();
1118 -
1119 - // Create Pinecone roles table
1120 - mxchat_create_pinecone_roles_table();
1121 -
1122 - // NEW 2.5.2: Create queue processing tables
1123 - mxchat_create_queue_tables();
1124 -
1125 - // Create transcript translations table
1126 - mxchat_create_translations_table();
1127 -
1128 - // Create per-session satisfaction ratings table (v3.2.6)
1129 - mxchat_create_session_ratings_table();
1130 -
1131 - // Ensure additional columns in system prompt table
1132 - $existing_system_columns = $wpdb->get_results("SHOW COLUMNS FROM $system_prompt_table");
1133 - if (!empty($existing_system_columns)) {
1134 - $existing_system_column_names = array_column($existing_system_columns, 'Field');
1135 -
1136 - if (!in_array('embedding_vector', $existing_system_column_names)) {
1137 - $wpdb->query("ALTER TABLE $system_prompt_table ADD COLUMN embedding_vector LONGTEXT");
1138 - }
1139 - if (!in_array('source_url', $existing_system_column_names)) {
1140 - $wpdb->query("ALTER TABLE $system_prompt_table ADD COLUMN source_url TEXT DEFAULT NULL");
1141 - }
1142 - if (!in_array('role_restriction', $existing_system_column_names)) {
1143 - $wpdb->query("ALTER TABLE $system_prompt_table ADD COLUMN role_restriction VARCHAR(50) DEFAULT 'public' AFTER source_url");
1144 - }
1145 - }
1146 -
1147 - // Set default thresholds for existing intents
1148 - $wpdb->query("UPDATE {$intents_table} SET similarity_threshold = 0.85 WHERE similarity_threshold IS NULL");
1149 -
1150 - // Ensure enabled column exists in intents table
1151 - $existing_intent_columns = $wpdb->get_results("SHOW COLUMNS FROM $intents_table");
1152 - if (!empty($existing_intent_columns)) {
1153 - $existing_intent_column_names = array_column($existing_intent_columns, 'Field');
1154 -
1155 - if (!in_array('enabled', $existing_intent_column_names)) {
1156 - $wpdb->query("ALTER TABLE $intents_table ADD COLUMN enabled TINYINT(1) NOT NULL DEFAULT 1");
1157 - }
1158 -
1159 - // Ensure enabled_bots column exists for existing installations
1160 - if (!in_array('enabled_bots', $existing_intent_column_names)) {
1161 - $wpdb->query("ALTER TABLE $intents_table ADD COLUMN enabled_bots LONGTEXT DEFAULT NULL AFTER enabled");
1162 -
1163 - // Set existing actions to work with default bot
1164 - $default_bots = json_encode(['default']);
1165 - $wpdb->query($wpdb->prepare(
1166 - "UPDATE {$intents_table} SET enabled_bots = %s WHERE enabled_bots IS NULL",
1167 - $default_bots
1168 - ));
1169 - }
1170 - }
1171 -
1172 - // Run migration for existing installations
1173 - mxchat_migrate_pinecone_roles_add_bot_id();
1174 -
1175 - // 3.2.4: Backfill active embedding model option (replaces 3.2.3 column-based tracking)
1176 - mxchat_backfill_active_embedding_model();
1177 -
1178 - // Setup cron jobs
1179 - mxchat_setup_cron_jobs();
1180 -
1181 - // Update version (stable base version — never the dev time()-suffixed one,
1182 - // or the check_for_update comparison would churn every request)
1183 - update_option('mxchat_plugin_version', MXCHAT_BASE_VERSION);
1184 -
1185 - //error_log("MxChat: Activation function completed");
1186 -}
1187 -
1188 -/**
1189 - * Setup cron jobs on plugin activation
1190 - */
1191 -function mxchat_setup_cron_jobs() {
1192 - // Clear any existing cron jobs first
1193 - wp_clear_scheduled_hook('mxchat_reset_rate_limits');
1194 -
1195 - // Check if WordPress cron is disabled
1196 - if (defined('DISABLE_WP_CRON') && DISABLE_WP_CRON) {
1197 - // Set flag to use fallback system
1198 - update_option('mxchat_use_fallback_rate_limits', true);
1199 - update_option('mxchat_next_rate_limit_check', time() + 3600);
1200 - // Deliberately NO early return (plan-bc08a6): transcript cleanup below
1201 - // must still be scheduled. DISABLE_WP_CRON only changes HOW cron events
1202 - // execute (a server-side runner hitting wp-cron.php instead of loopback
1203 - // spawns) — scheduling still just writes the cron option. The old early
1204 - // return here meant a deactivate/reactivate cycle on a DISABLE_WP_CRON
1205 - // site permanently lost the transcript cleanup event while the retention
1206 - // setting still claimed to be active.
1207 - } else {
1208 - // Schedule the rate limit reset cron job
1209 - $result = wp_schedule_event(time() + 300, 'hourly', 'mxchat_reset_rate_limits');
1210 -
1211 - if ($result === false) {
1212 - // Fallback if scheduling fails
1213 - update_option('mxchat_use_fallback_rate_limits', true);
1214 - update_option('mxchat_next_rate_limit_check', time() + 3600);
1215 - } else {
1216 - // Clear fallback flags if cron scheduling succeeded
1217 - delete_option('mxchat_use_fallback_rate_limits');
1218 - }
1219 - }
1220 -
1221 - // Schedule transcript cleanup if configured (bucket dropdown OR custom retention-days > 0)
1222 - $transcript_options = get_option('mxchat_transcripts_options', array());
1223 - $cleanup_interval = isset($transcript_options['mxchat_auto_delete_transcripts']) ? $transcript_options['mxchat_auto_delete_transcripts'] : 'never';
1224 - $custom_retention = isset($transcript_options['mxchat_retention_days']) ? (int) $transcript_options['mxchat_retention_days'] : 0;
1225 -
1226 - if ($cleanup_interval !== 'never' || $custom_retention > 0) {
1227 - // Check if not already scheduled
1228 - if (!wp_next_scheduled('mxchat_cleanup_old_transcripts')) {
1229 - // Schedule to run daily at 3 AM
1230 - $next_run = strtotime('tomorrow 3:00 AM');
1231 - wp_schedule_event($next_run, 'daily', 'mxchat_cleanup_old_transcripts');
1232 - }
1233 - }
1234 -}
1235 -
1236 -/**
1237 - * Clean up on plugin deactivation
1238 - */
1239 -function mxchat_deactivate() {
1240 - // Clear scheduled cron jobs
1241 - wp_clear_scheduled_hook('mxchat_reset_rate_limits');
1242 - wp_clear_scheduled_hook('mxchat_cleanup_old_transcripts');
1243 - wp_clear_scheduled_hook('mxchat_send_delayed_transcript');
1244 -
1245 - // Clear fallback options
1246 - delete_option('mxchat_use_fallback_rate_limits');
1247 - delete_option('mxchat_next_rate_limit_check');
1248 - delete_option('mxchat_fallback_check_interval');
1249 -
1250 - // NOTE: We do NOT delete queue tables on deactivation
1251 - // This preserves data if user accidentally deactivates the plugin
1252 -}
1253 -
1254 -/**
1255 - * Check if fallback rate limit cleanup is needed
1256 - */
1257 -function mxchat_check_fallback_rate_limits() {
1258 - $use_fallback = get_option('mxchat_use_fallback_rate_limits', false);
1259 -
1260 - if (!$use_fallback) {
1261 - return;
1262 - }
1263 -
1264 - $next_check = get_option('mxchat_next_rate_limit_check', 0);
1265 -
1266 - if (time() >= $next_check) {
1267 - // Reuse the bootstrap's integrator — mxchat_init() creates the global on
1268 - // plugins_loaded (before this init-priority-5 callback), so it's always set
1269 - // here. Constructing a second MxChat_Integrator just to call one method
1270 - // re-registers every hook the plugin has (ajax pairs, wp_footer loader,
1271 - // rest_api_init, admin_init guard) on a duplicate instance for the rest of
1272 - // the request. Defensive construction only if the global is somehow unset.
1273 - // NOTE: MxChat_Integrator::check_fallback_rate_limits() is a second
1274 - // implementation of this same check — if either changes, change both.
1275 - global $mxchat_integrator;
1276 - $integrator = ($mxchat_integrator instanceof MxChat_Integrator)
1277 - ? $mxchat_integrator
1278 - : (class_exists('MxChat_Integrator') ? new MxChat_Integrator() : null);
1279 - if ($integrator && method_exists($integrator, 'mxchat_reset_rate_limits')) {
1280 - $integrator->mxchat_reset_rate_limits();
1281 - update_option('mxchat_next_rate_limit_check', time() + 3600);
1282 - }
1283 - }
1284 -}
1285 -
1286 -/**
1287 - * Robust update checking with role restriction migration, model deprecation, and queue tables
1288 - * CRITICAL: This runs on EVERY page load to ensure tables exist
1289 - */
1290 104 function mxchat_check_for_update() {
1291 - global $wpdb;
1292 -
1293 - try {
1294 - $current_version = get_option('mxchat_plugin_version', '0.0.0');
1295 - $plugin_version = MXCHAT_BASE_VERSION;
105 + $current_version = get_option('mxchat_plugin_version');
106 + $plugin_version = '1.0.8';
1296 107
1297 - // Always ensure critical tables exist (even if version matches)
1298 - // This handles manual table deletion or fresh installs
1299 - $chat_table = $wpdb->prefix . 'mxchat_chat_transcripts';
1300 - $queue_table = $wpdb->prefix . 'mxchat_processing_queue';
1301 -
1302 - $chat_exists = $wpdb->get_var("SHOW TABLES LIKE '$chat_table'") === $chat_table;
1303 - $queue_exists = $wpdb->get_var("SHOW TABLES LIKE '$queue_table'") === $queue_table;
1304 -
1305 - if (!$chat_exists || !$queue_exists) {
1306 - //error_log("MxChat: Critical tables missing, running activation");
1307 - mxchat_activate();
1308 - }
1309 -
1310 - // Version-specific migrations
1311 - if ($current_version !== $plugin_version) {
1312 - //error_log("MxChat: Version change detected: $current_version -> $plugin_version");
1313 -
1314 - // Run live agent update BEFORE updating the stored version
1315 - mxchat_handle_live_agent_update();
1316 -
1317 - // Run theme migration notice for 3.0.1 (AI theme CSS structure changes)
1318 - mxchat_handle_theme_migration_notice();
1319 -
1320 - // Run role restriction migration for 2.4.1
1321 - if (version_compare($current_version, '2.4.1', '<')) {
1322 - mxchat_add_role_restriction_column();
1323 - }
1324 -
1325 - // Run enabled_bots column migration for 2.4.4
1326 - if (version_compare($current_version, '2.4.4', '<')) {
1327 - mxchat_add_enabled_bots_column();
1328 - }
1329 -
1330 - // Run model migration for 2.5.1 (Claude deprecation)
1331 - if (version_compare($current_version, '2.5.1', '<')) {
1332 - mxchat_migrate_deprecated_models();
1333 - }
1334 -
1335 - // 2.5.2: Ensure queue tables exist and fix URL column sizes for all users upgrading to 2.5.2
1336 - if (version_compare($current_version, '2.5.2', '<')) {
1337 - mxchat_create_queue_tables();
1338 - mxchat_fix_url_column_size(); // NEW: Fix URL column size for long URLs
1339 - //error_log("MxChat: Queue tables created and URL columns updated for upgrade to 2.5.2");
1340 - }
1341 -
1342 - // 2.6.0: Ensure rag_context column exists for retrieved documents feature
1343 - if (version_compare($current_version, '2.6.0', '<')) {
1344 - $chat_table = $wpdb->prefix . 'mxchat_chat_transcripts';
1345 - mxchat_ensure_all_columns($chat_table);
1346 - //error_log("MxChat: rag_context column migration for 2.6.0");
1347 - }
1348 -
1349 - // 3.0.5: Migrate deprecated Gemini embedding model
1350 - if (version_compare($current_version, '3.0.5', '<')) {
1351 - mxchat_migrate_gemini_embedding_model();
1352 - }
1353 -
1354 - // 3.0.6: Migrate deprecated OpenAI and Claude models
1355 - if (version_compare($current_version, '3.0.6', '<')) {
1356 - mxchat_migrate_deprecated_models();
1357 - }
1358 -
1359 - // 3.1.2: Convert chat transcripts table to utf8mb4 for emoji support
1360 - if (version_compare($current_version, '3.1.2', '<')) {
1361 - mxchat_migrate_transcripts_charset();
1362 - }
1363 -
1364 - // 3.1.7: Clean up stale shared session email/name entries
1365 - if (version_compare($current_version, '3.1.7', '<')) {
1366 - delete_option('mxchat_email_null');
1367 - delete_option('mxchat_name_null');
1368 - }
1369 -
1370 - // 3.2.4: Backfill active embedding model option for the warning UI
1371 - // (replaces the per-row column tracking from 3.2.3, which was reverted)
1372 - if (version_compare($current_version, '3.2.4', '<')) {
1373 - mxchat_backfill_active_embedding_model();
1374 - }
1375 -
1376 - // 3.2.15: Migrate retired DeepSeek ids (deepseek-chat / deepseek-reasoner
1377 - // were shut off at the vendor on 2026-07-24). The function is idempotent —
1378 - // it only rewrites models on its deprecation lists.
1379 - if (version_compare($current_version, '3.2.15', '<')) {
1380 - mxchat_migrate_deprecated_models();
1381 - }
1382 -
1383 - // Run full activation to ensure everything is up to date
1384 - mxchat_activate();
1385 -
1386 - // Run migration functions
1387 - mxchat_migrate_live_agent_status();
1388 -
1389 - // Add the cleanup function for version 2.1.8
1390 - if (version_compare($current_version, '2.1.8', '<')) {
1391 - $deleted = mxchat_cleanup_orphaned_chat_history();
1392 - }
1393 -
1394 - // Update version LAST
1395 - update_option('mxchat_plugin_version', $plugin_version);
1396 -
1397 - //error_log("MxChat: Updated from version $current_version to $plugin_version");
1398 - }
1399 -
1400 - } catch (Exception $e) {
1401 - //error_log('MxChat update error: ' . $e->getMessage());
1402 - // Don't update version if there was an error
108 + if ($current_version !== $plugin_version) {
109 + mxchat_activate(); // Run the activation script which includes database migrations
110 + update_option('mxchat_plugin_version', $plugin_version); // Update to the latest version
1403 111 }
1404 112 }
1405 113
1406 -/**
1407 - * Ensure tables exist on every admin load for fresh installations
1408 - * This is a safety net for cases where activation hook doesn't fire
1409 - */
1410 -function mxchat_ensure_tables_exist() {
1411 - global $wpdb;
1412 -
1413 - // Only run for admin users to avoid performance impact
1414 - if (!current_user_can('administrator')) {
1415 - return;
1416 - }
1417 -
1418 - // Check if we've already verified tables in this session
1419 - static $tables_checked = false;
1420 - if ($tables_checked) {
1421 - return;
1422 - }
1423 - $tables_checked = true;
1424 -
1425 - $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
1426 - $queue_table = $wpdb->prefix . 'mxchat_processing_queue';
1427 -
1428 - $chat_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name;
1429 - $queue_exists = $wpdb->get_var("SHOW TABLES LIKE '$queue_table'") === $queue_table;
1430 -
1431 - if (!$chat_exists || !$queue_exists) {
1432 - //error_log("MxChat: Tables missing on admin load, running activation");
1433 - mxchat_activate();
1434 - }
1435 -}
114 +// Run the update check function on every request
115 +add_action('plugins_loaded', 'mxchat_check_for_update');
1436 116
1437 -/**
1438 - * Clean up orphaned chat history options from the wp_options table
1439 - * @return int Number of options deleted
1440 - */
1441 -function mxchat_cleanup_orphaned_chat_history() {
1442 - global $wpdb;
1443 - $count = 0;
1444 -
1445 - // Get all option keys that match our pattern
1446 - $history_options = $wpdb->get_results(
1447 - "SELECT option_name FROM {$wpdb->options}
1448 - WHERE option_name LIKE 'mxchat_history_%'"
1449 - );
1450 -
1451 - if (!empty($history_options)) {
1452 - foreach ($history_options as $option) {
1453 - // Extract the session ID from the option name
1454 - $session_id = str_replace('mxchat_history_', '', $option->option_name);
1455 -
1456 - // Check if this session still exists in the custom table
1457 - $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
1458 - $exists = $wpdb->get_var(
1459 - $wpdb->prepare(
1460 - "SELECT COUNT(*) FROM {$table_name} WHERE session_id = %s",
1461 - $session_id
1462 - )
1463 - );
1464 -
1465 - // If session doesn't exist in the main table, delete the option
1466 - if ($exists == 0) {
1467 - delete_option($option->option_name);
1468 - // Also delete related metadata
1469 - delete_option("mxchat_email_{$session_id}");
1470 - delete_option("mxchat_name_{$session_id}");
1471 - delete_option("mxchat_agent_name_{$session_id}");
1472 - $count++;
1473 - }
1474 - }
1475 - }
1476 -
1477 - return $count;
1478 -}
1479 -
1480 -function mxchat_migrate_live_agent_status() {
1481 - $options = get_option('mxchat_options', []);
1482 -
1483 - // Check if live_agent_status exists
1484 - if (isset($options['live_agent_status'])) {
1485 - $current_status = $options['live_agent_status'];
1486 - $needs_update = false;
1487 -
1488 - // Convert to new format if needed
1489 - if ($current_status === 'online') {
1490 - $options['live_agent_status'] = 'on';
1491 - $needs_update = true;
1492 - } else if ($current_status === 'offline') {
1493 - $options['live_agent_status'] = 'off';
1494 - $needs_update = true;
1495 - } else if (!in_array($current_status, ['on', 'off'])) {
1496 - // Default to off for any unexpected values
1497 - $options['live_agent_status'] = 'off';
1498 - $needs_update = true;
1499 - }
1500 -
1501 - // Only update if needed
1502 - if ($needs_update) {
1503 - update_option('mxchat_options', $options);
1504 - }
1505 - } else {
1506 - // If status doesn't exist, set default to off
1507 - $options['live_agent_status'] = 'off';
1508 - update_option('mxchat_options', $options);
1509 - }
1510 -}
1511 -
1512 -function mxchat_handle_live_agent_update() {
1513 - // Get the CURRENT stored version (before it gets updated)
1514 - $current_version = get_option('mxchat_plugin_version', '0.0.0');
1515 - $new_version = '2.2.2';
1516 -
1517 - // Only run this once for the update to 2.2.2
1518 - $update_handled = get_option('mxchat_live_agent_update_2_2_2_handled', false);
1519 -
1520 - // Check if we're upgrading TO 2.2.2 and haven't handled this yet
1521 - if (version_compare($current_version, $new_version, '<') && !$update_handled) {
1522 - $options = get_option('mxchat_options', array());
1523 -
1524 - // Check if live agent was previously enabled
1525 - if (isset($options['live_agent_status']) && $options['live_agent_status'] === 'on') {
1526 - // Disable live agent
1527 - $options['live_agent_status'] = 'off';
1528 - update_option('mxchat_options', $options);
1529 -
1530 - // Set flag to show the notification banner
1531 - update_option('mxchat_show_live_agent_disabled_notice', true);
1532 - }
1533 -
1534 - // Mark this update as handled
1535 - update_option('mxchat_live_agent_update_2_2_2_handled', true);
1536 - }
1537 -}
1538 -
1539 -/**
1540 - * Handle theme migration notice for version 3.0.1
1541 - * Shows a dismissible notice to Pro users about migrating AI-generated themes
1542 - */
1543 -function mxchat_handle_theme_migration_notice() {
1544 - // Get the CURRENT stored version (before it gets updated)
1545 - $current_version = get_option('mxchat_plugin_version', '0.0.0');
1546 - $target_version = '3.0.1';
1547 -
1548 - // Only run this once for the update to 3.0.1
1549 - $update_handled = get_option('mxchat_theme_migration_update_3_0_1_handled', false);
1550 -
1551 - // Check if we're upgrading TO 3.0.1 and haven't handled this yet
1552 - if (version_compare($current_version, $target_version, '<') && !$update_handled) {
1553 - // Check if Pro is activated - only show to Pro users
1554 - $license_status = get_option('mxchat_license_status', 'inactive');
1555 - $is_pro = ($license_status === 'active');
1556 -
1557 - if ($is_pro) {
1558 - // Set flag to show the theme migration notification banner
1559 - update_option('mxchat_show_theme_migration_notice', true);
1560 - }
1561 -
1562 - // Mark this update as handled (whether Pro or not)
1563 - update_option('mxchat_theme_migration_update_3_0_1_handled', true);
1564 - }
1565 -}
1566 -
1567 -// Initialize plugin safely
1568 -function mxchat_init() {
1569 - // Include all class files first
1570 - mxchat_include_classes();
1571 -
1572 - // Run update check (this also ensures tables exist)
1573 - mxchat_check_for_update();
1574 -
1575 - // CRITICAL: Ensure tables exist on admin pages (safety net)
1576 - add_action('admin_init', 'mxchat_ensure_tables_exist', 1);
1577 -
1578 - // Add fallback rate limit check
1579 - add_action('init', 'mxchat_check_fallback_rate_limits', 5);
1580 -
1581 - // Add migration notice hook
1582 - add_action('admin_notices', 'mxchat_show_migration_notice');
1583 -
1584 - // Initialize classes with error handling
1585 - try {
1586 - // Initialize admin classes
1587 - if (is_admin()) {
1588 - if (class_exists('MxChat_Knowledge_Manager')) {
1589 - $mxchat_knowledge_manager = new MxChat_Knowledge_Manager();
1590 -
1591 - if (class_exists('MxChat_Admin')) {
1592 - $mxchat_admin = new MxChat_Admin($mxchat_knowledge_manager);
1593 - }
1594 - }
1595 -
1596 - // Initialize meta box class
1597 - if (class_exists('MxChat_Meta_Box')) {
1598 - new MxChat_Meta_Box();
1599 - }
1600 -
1601 - }
1602 -
1603 - // Initialize content generator globally — it registers wp_head hook
1604 - // for frontend CSS injection, plus wp_ajax_ hooks for admin.
1605 - if (class_exists('MxChat_Content_Generator')) {
1606 - new MxChat_Content_Generator();
1607 - }
1608 -
1609 - // Initialize cache purge globally — settings writes can happen on any
1610 - // request type (admin screens, admin-ajax autosave, wp-cli), and the
1611 - // deferred-purge cron event fires on front-end requests.
1612 - if (class_exists('MxChat_Cache_Purge')) {
1613 - MxChat_Cache_Purge::init();
1614 - }
1615 -
1616 - // Initialize REST API globally — endpoints must be registered on
1617 - // every request (admin and frontend) so they're reachable via /wp-json/.
1618 - // Endpoints are auth-gated and locked until the site owner generates
1619 - // a token in MxChat → API Access.
1620 - if (class_exists('MxChat_Rest_Api')) {
1621 - new MxChat_Rest_Api();
1622 - }
1623 -
1624 - // Initialize public classes
1625 - if (class_exists('MxChat_Public')) {
1626 - $mxchat_public = new MxChat_Public();
1627 - }
1628 -
1629 - if (class_exists('MxChat_Integrator')) {
1630 - global $mxchat_integrator;
1631 - $mxchat_integrator = new MxChat_Integrator();
1632 - }
1633 -
1634 - } catch (Exception $e) {
1635 - //error_log('MxChat initialization error: ' . $e->getMessage());
1636 -
1637 - // Show admin notice if there's an error
1638 - if (is_admin()) {
1639 - add_action('admin_notices', function() use ($e) {
1640 - echo '<div class="notice notice-error"><p>';
1641 - echo '<strong>MxChat Error:</strong> Plugin initialization failed. ';
1642 - echo 'Please check error logs or contact support. Error: ' . esc_html($e->getMessage());
1643 - echo '</p></div>';
1644 - });
1645 - }
1646 - }
1647 -}
1648 -
1649 -// Run initialization on plugins_loaded
1650 -add_action('plugins_loaded', 'mxchat_init');
1651 -
1652 -// Run migration check on admin init (for auto-updates without reactivation)
1653 -add_action('admin_init', 'mxchat_check_and_run_migrations');
1654 -
1655 -/**
1656 - * Check and run migrations on admin init
1657 - * This ensures migrations run even when plugin is auto-updated
1658 - */
1659 -function mxchat_check_and_run_migrations() {
1660 - // Only run in admin and not on every request
1661 - static $checked = false;
1662 - if ($checked) {
1663 - return;
1664 - }
1665 - $checked = true;
1666 -
1667 - mxchat_migrate_pinecone_roles_add_bot_id();
1668 - mxchat_migrate_add_content_type_column();
1669 - mxchat_migrate_add_translations_table();
1670 - mxchat_migrate_add_session_ratings_table();
1671 -}
1672 -
1673 -/**
1674 - * Migration: Create per-session satisfaction ratings table (v3.2.6)
1675 - * For users upgrading from versions before 3.2.6
1676 - */
1677 -function mxchat_migrate_add_session_ratings_table() {
1678 - $migration_key = 'mxchat_session_ratings_table_created';
1679 - if (get_option($migration_key)) {
1680 - return;
1681 - }
1682 - mxchat_create_session_ratings_table();
1683 - update_option($migration_key, '3.2.6');
1684 -}
1685 -
1686 -/**
1687 - * Migration: Create transcript translations table (v3.0.4)
1688 - * For users upgrading from versions before 3.0.4
1689 - */
1690 -function mxchat_migrate_add_translations_table() {
1691 - $migration_key = 'mxchat_translations_table_created';
1692 -
1693 - // Check if migration already ran
1694 - if (get_option($migration_key)) {
1695 - return;
1696 - }
1697 -
1698 - // Create the translations table
1699 - mxchat_create_translations_table();
1700 -
1701 - // Mark migration as complete
1702 - update_option($migration_key, '3.0.4');
1703 -}
1704 -
1705 -/**
1706 - * Migration: Update deprecated Gemini embedding model (v3.0.5)
1707 - * Updates gemini-embedding-exp-03-07 to gemini-embedding-001 for users who had it selected
1708 - */
1709 -function mxchat_migrate_gemini_embedding_model() {
1710 - $options = get_option('mxchat_options', array());
1711 -
1712 - if (isset($options['embedding_model']) && $options['embedding_model'] === 'gemini-embedding-exp-03-07') {
1713 - $options['embedding_model'] = 'gemini-embedding-001';
1714 - update_option('mxchat_options', $options);
1715 - }
1716 -}
1717 -
1718 117 // Register activation hook
1719 118 register_activation_hook(__FILE__, 'mxchat_activate');
1720 119
1721 -// Add cron schedule
1722 -add_filter('cron_schedules', function($schedules) {
1723 - $schedules['one_minute'] = array(
1724 - 'interval' => 60,
1725 - 'display' => 'Every Minute'
1726 - );
1727 - return $schedules;
1728 -});
1729 -
1730 -// Register deactivation hook
1731 -register_deactivation_hook(__FILE__, 'mxchat_deactivate');
1732 -
1733 -/**
1734 - * Per-session satisfaction rating: AJAX save handler (v3.2.6).
1735 - * Records one 👍/👎 + optional feedback per chat session. The UNIQUE KEY on
1736 - * session_id makes this naturally idempotent — only the first rating per
1737 - * session is stored; duplicate POSTs are silent no-ops.
1738 - */
1739 -function mxchat_save_session_rating() {
1740 - global $wpdb;
1741 -
1742 - $session_id = isset($_POST['session_id']) ? sanitize_text_field(wp_unslash($_POST['session_id'])) : '';
1743 - $bot_id = isset($_POST['bot_id']) ? sanitize_text_field(wp_unslash($_POST['bot_id'])) : 'default';
1744 - $rating_raw = isset($_POST['rating']) ? (int) $_POST['rating'] : 0;
1745 - $feedback = isset($_POST['feedback']) ? sanitize_textarea_field(wp_unslash($_POST['feedback'])) : '';
1746 -
1747 - if ($session_id === '' || ($rating_raw !== 1 && $rating_raw !== -1)) {
1748 - wp_send_json_error(array('message' => 'invalid_input'), 400);
1749 - }
1750 -
1751 - if (strlen($feedback) > 1000) {
1752 - $feedback = substr($feedback, 0, 1000);
1753 - }
1754 -
1755 - $table_name = $wpdb->prefix . 'mxchat_session_ratings';
1756 - $existing = $wpdb->get_var($wpdb->prepare(
1757 - "SELECT id FROM $table_name WHERE session_id = %s LIMIT 1",
1758 - $session_id
1759 - ));
1760 -
1761 - if ($existing) {
1762 - if ($feedback !== '') {
1763 - $wpdb->update(
1764 - $table_name,
1765 - array('rating_feedback' => $feedback),
1766 - array('id' => (int) $existing),
1767 - array('%s'),
1768 - array('%d')
1769 - );
1770 - }
1771 - wp_send_json_success(array('updated' => true));
1772 - }
1773 -
1774 - $inserted = $wpdb->insert(
1775 - $table_name,
1776 - array(
1777 - 'session_id' => $session_id,
1778 - 'bot_id' => $bot_id !== '' ? $bot_id : 'default',
1779 - 'rating_value' => $rating_raw,
1780 - 'rating_feedback' => $feedback !== '' ? $feedback : null,
1781 - 'created_at' => current_time('mysql'),
1782 - ),
1783 - array('%s', '%s', '%d', '%s', '%s')
1784 - );
1785 -
1786 - if ($inserted === false) {
1787 - wp_send_json_error(array('message' => 'db_insert_failed'), 500);
1788 - }
1789 -
1790 - wp_send_json_success(array('saved' => true));
120 +// Instantiate classes
121 +if (is_admin()) {
122 + $mxchat_admin = new MxChat_Admin();
1791 123 }
1792 -add_action('wp_ajax_mxchat_save_rating', 'mxchat_save_session_rating');
1793 -add_action('wp_ajax_nopriv_mxchat_save_rating', 'mxchat_save_session_rating');
124 +$mxchat_public = new MxChat_Public();
125 +$mxchat_integrator = new MxChat_Integrator();